27 Terms
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Plastic injection molding
Plastic injection molding is the primary process for manufacturing plastic parts used in consumer goods such as computer keyboards, monitors, bottle caps, cups and solid plastic articles. Plastic is known to be a very versatile and economical material that is used in many applications. Injection molding involves taking plastic in the form of pellets or granules and heating this material until a melt is obtained. Then the melt is forced into a split-die chamber/mold where it is allowed to "cool" into the desired shape. The mold is then opened and the part is ejected, at which time the cycle is repeated.
Industry: Manufacturing
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Plastic injection molding
molding sensitivity
Manufacturing; Plastic injection molding
the variability of the pressure to fill the cavity and temperature of the melt at the part as influenced by changes in injection time and barrel melt temperature.
breakdown voltage
Manufacturing; Plastic injection molding
The voltage required, under specific conditions, to cause failure of an insulation material. See Dielectric Strength.
dielectric strength
Manufacturing; Plastic injection molding
The voltage that an insulating material can withstand before dielectric breakdown occurs.
specific volume
Manufacturing; Plastic injection molding
The volume of a unit of weight of a material; the reciprocal of density.
flow rate
Manufacturing; Plastic injection molding
the volume of material passing a fixed point per unit time.
stress cracking
Manufacturing; Plastic injection molding
There are three types of stress cracking: 1. Thermal stress cracking is caused by prolonged exposure of the part to elevated temperatures or sunlight. 2. Physical stress cracking occurs between ...
blocking & anticaking agents
Manufacturing; Plastic injection molding
These additives are used to prevent the adhesion and agglomeration of ingredients within a resin compound.
